Human Bodies: Then And Now

As early humans evolved, our ancestors’ new bodies allowed for changes in their environments. They began to rely on farming and machines to make life easier. We’ll talk this hour about how those innovations have outpaced our biological evolution – and how they have opened the door for “mismatch diseases” – with Daniel Lieberman, Chair of the Department of Human Evolutionary Biology at Harvard. His new book is The Story of the Human Body: Evolution, Health, and Disease (Vintage).